单词 | plagioclase |
释义 | BETA Examples ofplagioclaseDictionary> Examples ofplagioclase plagioclaseisn’t in the Cambridge Dictionary yet. You can help! Add a definition In some sections, freshplagioclaseoccurs as isolated islands in a strongly sericitized matrix crystal. From theCambridge English Corpus These patches apparently represent remnants of primaryplagioclasephenocrysts. From theCambridge English Corpus The groundmass consists ofplagioclase, pyroxene and glass with an interstitial texture. From theCambridge English Corpus The absence of small plagioclases probably indicates their dissolution. From theCambridge English Corpus The chemical variation of the plagioclases in the tuffs is therefore most likely influenced by different degrees of alteration. From theCambridge English Corpus Overlying the alkali basalts are minor tephrite andplagioclase- and kaersutite-phyric phonotephrite lavas. From theCambridge English Corpus Theplagioclaseis seen either as phenocrysts or as microliths within the matrix. From theCambridge English Corpus These centres are thus comprised of quartz andplagioclase. From theCambridge English Corpus In the first stage, the garnet was partially to wholly replaced by kelyphitic coronites formed of radiating, symplectic intergrowths of orthopyroxene (hypersthene) andplagioclase. From theCambridge English Corpus During this stage, the mafic minerals grow faster thanplagioclase, exhausting the local melt in mafic components. From theCambridge English Corpus There are also small quantities of generally albiticplagioclaseand grains of conspicuously twinned microcline that are not visibly perthitic. From theCambridge English Corpus It displays different habits, ranging from phenocrysts to small grains interstitially distributed betweenplagioclaselaths. From theCambridge English Corpus The clinopyroxene forms neutral to pale brown, subhedral to anhedral crystals, occasionally containing inclusions ofplagioclasemicrolaths and opaque phases. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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